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Libroplantasingl

5BASIC SIZING CRITERIA FOR SORTING PLANTS Example 2: Sizing of a Expected input of light weight packaging and solid urban waste. Table 11 Expected input of light weight packaging Expected input of solid urban waste Year t/year Annual growth estimate Year t/year Annual growth estimate 2013 1,950 7.00% 2013 46,500 1.00% 2014 2,087 2014 46,965 2015 2,233 2015 47,435 2016 2,389 2016 47,909 2017 2,556 2017 48,388 2018 2,735 2018 48,872 2019 2,926 2019 49,361 2020 3,131 2020 49,854 2021 3,350 2021 50,353 2022 3,585 2022 50,856 Standard work plan 1,729 useful hours shift/year Nominal capacity solid urban waste Nominal capacity (t/h) = inputs at the end of the service life (t/year) / (1 shifts * 1,729 h/year) 50,856 t/year / (1 shifts * 1,729 h) = 29.4 t/h. The sorting plant must have a nominal capacity of 30 t/h. Design capacity solid urban waste Inputs year 10 = 50,856 t/year. Average monthly input = 50.856 t/year / 12 months = 4.238 t/month. Most unfavourable month input (August) = 4,238 t/month * (100% + 7.51%) = 4.556 t/month. Useful hours/month = 1,729 h / 12 months = 144 h/month. Design capacity = 1.1*(mean monthly input and end of service life (t/month) * Input increase in one month (%) / (1 shift * 144 h/month)). 1.1*(4,556 t/month / (1 shift * 144 h/month)) = 34.8 t/h = 35 t/h A design capacity of 35 t/h for the facility allows us to ensure treatment of solid urban waste throughout its service life.


Libroplantasingl
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